Futrono Fault is a NWW tending
geological fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic ...
in
Los Ríos Region, running from the northern shore of
Ranco Lake
Ranco Lake ( es, Lago Ranco) is located in Ranco Province of Chile. It is the largest lake of Los Ríos Region and the fourth largest in Chile. Administratively Ranco Lake is split into three communes; La Unión, Futrono and Lago Ranco. The l ...
through the areas immediately south of
Maihue Lake
The Maihue Lake ( es, Lago Maihue, , Mapudungun for ''Wooden glass'') is a lake located east of Ranco Lake in the Andean mountains of southern Chile. The lake is of glacial origin and it is enclosed by mountain ranges of the Andes
The And ...
, where it intersects the large
Liquiñe-Ofqui Fault, and through the east along the
Hueinahue River
Hueinahue River is a river in Futrono and Lago Ranco communes, southern Chile. It drains waters from the cordillera at the Argentine border west to Maihue Lake, which in turn flows by Calcurrupe River into Ranco Lake. The river flows in an east- ...
. The volcanic group of
Carrán-Los Venados
Carrán-Los Venados () is a volcanic group of scoria cones, maars and small stratovolcanoes in southern Chile, southeast of Ranco Lake. The highest cone is Los Guindos (Spanish for "The Cherry Trees), which is a small stratovolcano with an elevati ...
is located above the fault.
{{coord missing, Chile
Seismic faults of Chile
Strike-slip faults
Geology of Los Ríos Region